Tissue Specificity | Most abundant in colon and small intestine, followed by kidney and stomach. In kidney, expressed in proximal tubules and outer medulla (at protein level). |
Post Translational Modifications | Phosphorylated by PRKACA at Ser-552 and Ser-605, which inhibits activity. Phosphorylation of Ser-605 is essential for cAMP-mediated inhibition of SLC9A3. Phosphorylation at Ser-661 by SGK1 is associated with increased abundance at the cell membrane. Phosphorylation at Ser-716 by CSNK2A1 regulates SLC9A3 activity through the formation of multiple signaling complexes. |
Function | Plasma membrane Na(+)/H(+) antiporter. Exchanges intracellular H(+) ions for extracellular Na(+) in 1:1 stoichiometry, playing a key role in salt and fluid absorption and pH homeostasis. Major apical Na(+)/H(+) exchanger in kidney and intestine playing an important role in renal and intestine Na(+) absorption and blood pressure regulation. |
Protein Name | Sodium/Hydrogen Exchanger 3Na(+/H(+ Exchanger 3Nhe-3Solute Carrier Family 9 Member 3 |
Database Links | Reactome: R-RNO-425986 |
Cellular Localisation | Apical Cell MembraneMulti-Pass Membrane ProteinCell MembraneRecycling Endosome MembraneEarly Endosome MembraneIn Intestinal Epithelial CellsLocalizes To The Ileal Brush BorderAngiotensin-2 Enhances Apical ExpressionTranslocates Between Intracellular Compartments And The Plasma Membrane Via A Clathrin-Mediated Pathway |
Alternative ELISA Names | Sodium/Hydrogen Exchanger 3 ELISA kitNa(+/H(+ Exchanger 3 ELISA kitNhe-3 ELISA kitSolute Carrier Family 9 Member 3 ELISA kitSlc9a3 ELISA kitNhe3 ELISA kit |
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Information sourced from Uniprot.org